DataVXBatteries & SupercapsPaper
journal article·2023-09Open access

Microsupercapacitors Working at 250 °C

Viktoriia Mishukova, Yingchun Su, Shiqian Chen, Nicolas Boulanger, Bo Xu, Hari Hara Sudhan Thangavelu, Jinhua Sun, Wei Xia, Alexandr Talyzin, Jiantong Li

Batteries & Supercaps· Volume 6· Issue 9
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Source abstract

Abstract

Abstract The raised demand for portable electronics in high‐temperature environments (>150 °C) stimulates the search for solutions to release the temperature constraints of power supply. All‐solid‐state microsupercapacitors (MSCs) are envisioned as promising on‐chip power supply components, but at present, nearly none of them can work at temperature over 200 °C, mainly restricted by the electrolytes which possess either low thermal stability or incompatible fabrication process with on‐chip integration. In this work, we have developed a novel process to fabricate highly thermally stable ionic liquid/ceramic composite electrolytes for on‐chip integrated MSCs. Remarkably, the electrolytes enable MSCs with graphene‐based electrodes to operate at temperatures as high as 250 °C with a high areal capacitance (~72 mF cm−2 at 5 mV s−1) and good cycling stability (70 % capacitance retention after 1000 cycles at 1.4 mA cm−2).
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Research context

Energy storageCeramics & glassesNanomaterialsComposites

OpenAlex topics: Supercapacitor Materials and Fabrication · Advancements in Battery Materials · Advanced Battery Materials and Technologies

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

KTH Royal institute of Technology School of Electrical Engineering and Computer Science Electrum 229 164 40 Kista Sweden

Department of Physics Umeå University 901 87 Umeå Sweden

MIIT Key Laboratory of Advanced Display Materials and Devices Institute of Optoelectronics & Nanomaterials School of Materials Science and Engineering Nanjing University of Science and Technology 210 094 Nanjing China

Department of Industrial and Materials Science Chalmers University of Technology 412 58 Gothenburg Sweden

Applied Materials Science Department of Materials Science and Engineering Uppsala University 751 21 Uppsala Sweden

Funding

Vetenskapsrådet · Swedish Foundation for International Cooperation in Research and Higher Education · Energimyndigheten

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